Landforms
This Natural Park in Arizona is home to what famous landform?
Canyon
What type of rock are fossils found in?
Sedimentary
What is biological weathering caused by?
Living things
True or False: The rock cycle has a definite start and end point
False
John Wesley Powell
What landform occurs when Earth's surface is hit with something large like an asteroid?
Crater
A footprint found in mud that becomes fossilized is an example of what type of fossil?
Trace Fossil
What are the two main types of erosion?
Wind and Water
What type of rocks form when rocks are melted?
Igneous Rocks
T-Rex teeth are what type of fossil?
Body Fossil
This landform forms where the ocean meets a river.
Delta
Amber
What are the two main types of weathering?
Chemical and Mechanical
Small pieces of rock that break off of the original are called what?
Sediment
What is a half life?
When an atom decays and half of the atom becomes something else.
A large area of flat land located well above sea level is called what?
Plateau
The age dinosaurs lived in was what period?
How is chemical weathering different than physical weathering?
Changing affects the chemical composition
Shale is most likely formed by what type of environment?
Swampy
What is Uniformantarism?
The process that all of Earth's process happen the same way they always have
A large crater caused by the violent explosion of a volcano that collapses into a depression is called what?
Caldera
What are the three rules for Index Fossils? (Must have all 3 correct to get the points)
1. Must be widespread, 2. Must be in one layer ONLY, 3. Must be in many locations
What is a way that humans can prevent erosion?
Planting vegetation to hold soil, Building retaining wall, Creating terraces on slope, Using windbreaks to reduce wind erosion
Why is the rock cycle considered a continuous process rather than a one-time event?
Answers will vary
Solve the following Half Life Problem: If you have 100 grams of a radioactive isotope with a half-life of 10 years, how much of the sample will remain after 60 years? (Round to the hundredths place)
1.56 g